Lynn,
What is the purpose of the restrictor in the line from the water
pump? Is the air supposed to come out of solution when the pressure drops
on the back side? Looks like you would be adding an unnecessary load on
the engine to add the pressure in the system???
Bill B
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Lynn Hanover
Sent: Monday, August 17, 2009 9:50
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Swirl pots
I need to design a swirl pot for my
renesis/rv6a installation. is there an accepted volume I need to work
with? it's my understanding that the water pump outlet goes thru the
swirl pot and then on to the radiator input, and that the pot should be close
to the pump. would it make sense to look into the pot welded to the pump,
if possible? are pots always cylindrical? kevin
Here is the system I have used on my race
cars since 1975. I then found it on Mazda RX-2s and 3s.
My make up tank is actually off of an RX-2.
The swirl pot is a replica of a device used
in commercial heating systems using hot water to heat big buildings, called a
Rolairtrol by Bell
and Gossett. Used to remove air from the hot water circuits.
Mine are made from expended propane
bottles. Smal aluminum fire extinguishers work as well.
It is very difficult to remove the air from
the rotary engine, and I have the engines out of the car every two or three
weekends, so it turned into a giant pain with each refilling of the coolant
system. The inlet flow is in the center and on a tangent so as to spin
the coolant. Any air pops to the top of the can and as pressure goes up with
temperature the air is forced into the bottom of the make up tank. When coolant
temps drop a bit the pressure in the make up tank can force only coolant back
into the system, no air. After only one heat cycle you will need to add coolant
to the make up tank. The overflow tank is required for racing, but
never gets any coolant in it.
This is not my idea. (The make up tank) It
was on every Mazda imported to the US.
The cap on the swirl pot is a seal only
used to fill the system. The pressure requlating cap is on the top of the make
up tank. The swirl pot could have only a fitting for the line to the make up
tank.
The system can be filled by removing one
hose from the pot.
The make up pot need not be higher than
anything else. Mine is on the passenger side floor. Use small diameter hose in
the run to the make up tank. Light, cheap, works every time.